Remember that a doubled die coin is the result of features of the die being doubled during manufacturing of the die. Mechanical doubling, also known as strike doubling, impact doubling and many other names, is caused by minor slippage of coin or die during impact. Study of the manufacturing of coins will help greatly in identifying each.
Also, great camera work. Not one in a hundred here know how to take quality images of coins. I congratulate you!
Time for more coffee.